var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var Gallery = require('./models/gallery.js');


var routes = require('./routes/index');
var test = require('./routes/test');

var app = express();

//配置模版引擎 - 这里是art-template
var template = require('art-template');
app.engine('html', template.__express);
app.set('view engine', 'html');
app.set('views', path.join(__dirname, 'views'));

//配置模版引擎 - 这里是juicer
//var juicer = require('juicer');
//var fs = require('fs');
//
//app.set('views', path.join(__dirname, 'views'));
//juicer.set({
//    'tag::operationOpen': '<!--$',
//    'tag::operationClose': '-->',
//    'tag::interpolateOpen': '${',
//    'tag::interpolateClose': '}',
//    'tag::noneencodeOpen': '$${',
//    'tag::noneencodeClose': '}',
//    'tag::commentOpen': '<!--#',
//    'tag::commentClose': '-->'
//});
//app.set('view engine', 'html');
//app.engine('html', function(path, options, fn){
//    fs.readFile(path, 'utf8', function(err, str){
//        if (err) return fn(err);
//        str = juicer(str, options);
//        fn(null, str);
//    });
//});

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', routes);
app.use('/index.html', routes);

// catch 404 and forward to error handler
app.use(function (req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
    app.use(function (err, req, res, next) {

        console.log(err);
        res.status(err.status || 500);
        Gallery.getError(res, {
            message: err.message,
            error: err,
            code: err.status
        })
    });
}

// production error handler
// no stacktraces leaked to user
app.use(function (err, req, res, next) {

    res.status(err.status || 500);
    Gallery.getError(res, {
        message: err.message,
        error: {},
        code: err.status
    });

});

module.exports = app;
